Home › Events › Distinguished Lecture Series: Wolfgang Lück - University of Bonn, Germany Distinguished Lecture Series: Wolfgang Lück - University of Bonn, Germany Time: Tue, Apr 9 at 4:00 pm – 5:00 pm Location: 127 Hayes-Healy Bldg. Title: L2-Betti numbers and their applications I Poster Originally published at math.nd.edu.